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Informational 16 Bitcoin

chore: negative indices and more bytes types

TZ501a0f8a View source ↗
Public commit record

What the developer wrote

Authored by Ioan Bizău

57/100 · Thin
chore: negative indices and more bytes types

[no changelog]
✓ Descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope! No meaningful explanatory body
The short version

What changed, and why it matters

This commit changes the numeric codes used to identify Ethereum data types in Trezor's device-to-computer protocol. It also allows path numbers in one message type to be negative (signed integers) instead of only positive (unsigned integers). The changes are described as a routine cleanup ('chore') with no changelog entry. There is no direct evidence in the commit that this fixes a security vulnerability.

Recommended action

Treat as a compatibility/API maintenance change. Verify that firmware, trezorlib, and rust client versions using these enum values are updated together to avoid mismatched ABI type decoding or path parsing. No security patch action is indicated by the supplied commit alone.

Security signals we found

01

Protocol wire-format field type change (uint32 -> sint32) for repeated path indices

02

Enum value renumbering that could affect cross-version compatibility if not deployed consistently

03

No changelog entry and commit message frames change as non-security routine work

Risk score

Why this scored 16/100

Our methodology →
Potential impact 2/30
Exploitability 2/25
Stealth signal 3/15
Affected reach 4/15
Confidence 3/10
Evidence quality 2/5
Human-validated context

Community notes

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The AI analysis stands alone for now. Submit a note if you can add evidence or important context.

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